Heavy water leak at Wolseong Nuclear Power Plant Unit 2 in South Korea found to be far larger than initially reported

The actual scale of the heavy water leak that occurred at Wolseong Nuclear Power Plant Unit 2 in Gyeongju, North Gyeongsang Province, South Korea, in September last year, is reported to be far larger than the initially disclosed figure. The Gyeongju Environmental Movement Alliance disclosed on the 30th that a detailed internal report obtained from Korea Hydro & Nuclear Power (KHNP) shows the total amount of heavy water leaked was 1,311.15 kg, approximately five times the initially reported 256 kg, of which 5.14 kg was recorded as having leaked outdoors. After the incident, Korea Electric Power Corporation (KEPCO) had reported a heavy water leak of 256 kg and stated that no external leakage occurred. The detailed report now made public reveals...

2026-07-30